Intermittent Problem Diagnosis: Notes

Use this procedure to locate intermittent driveability problems that do not occur when the vehicle is being tested. These problems may cause a noticeable driveability problem or cause the "malfunction" warning light to illuminate on some vehicles. Before attempting to diagnose an intermittent fault, make sure procedures in the BASIC TESTING and G - TESTS W/ CODES articles (if applicable) have been performed. Refer to the following menu. Intermittent fault testing requires you to duplicate a circuit or component failure, in order to identify the fault. These procedures may lead to the computer recording a fault code (on some systems) which may help in diagnosis.